Léa Seydoux has a lot to learn about her marriage in the trailer for Netflix‘s thriller Gentle Monster.

Director Marie Kreutzer‘s feature hits select theaters Oct. 30 before launching on the streaming service Nov. 18. Jella Haase, Laurence Rupp and Catherine Deneuve round out the cast for the film that premiered in competition at Cannes earlier this year and is set to screen at the Toronto International Film Festival.

Gentle Monster centers on Lucy (Seydoux), a concert pianist whose life is dramatically altered after a police raid leads her to protect her son and question how well she knows her husband.

“What are these secrets you have?” Seydoux asks in the trailer.

Marie Kreutzer (Corsage) helmed the movie from her own script. Alexander Glehr and Johanna Scherz serve as producers.